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matrenka [14]
3 years ago
12

At the beginning of summer, Mark has $200 in savings and Ryan has $350. The brothers have mowing jobs set up for the summer. Bec

ause Mark is older, he receives $20 for each mowing job and Ryan receives $15. The brothers’ parents pay for the fuel used to mow, so all of the money the brothers earn goes to savings.
Write two equations, one for Mark and one for Ryan, to represent the money in savings (s) based on the number of mowing jobs (j) Mark and Ryan do.
Determine the number of mowing jobs it takes for Mark to have the same amount in savings as Ryan does. Show your work.
Mathematics
1 answer:
xz_007 [3.2K]3 years ago
5 0

Answer:

  • 30 jobs

Step-by-step explanation:

<u>Mark</u>

  • Initial amount - $200
  • Earning - $20*j
  • Saving is: S = 20j + 200

<u>Ryan</u>

  • Initial amount - $350
  • Earning - $15*j
  • Saving is: S = 15j + 350

<u>If they get same saving, then the equations will be equal:</u>

  • 20j + 200 = 15j + 350
  • 20j - 15j = 350 - 200
  • 5j = 150
  • j = 150/5
  • j = 30

The answer is 30 mowing jobs

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